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Hao, Li-Ying,H. Park, Ju,Ye, Dan IET 2016 IET control theory & applications Vol.10 No.3
<P>This study proposes an integral sliding mode control (ISMC) scheme for a class of uncertain non-linear systems subject to actuator faults including outage. It is noted that traditional ISMC method cannot handle actuator outage. To tackle the problem, matrix full-rank factorisation technique and adaptive mechanism are incorporated. Based on the above technique, two novel integral sliding surfaces using construction methods I and II are then introduced and existence conditions of sliding modes are given in terms of linear matrix inequalities, in which less conservativeness and better robustness against actuator faults are obtained using construction method II than I. The fuzzy logic systems are applied to approximate the bounds of unknown non-linear functions. Furthermore, an integral sliding mode controller, without an fault detection and isolation mechanism, is synthesised to guarantee the asymptotic stability and the robustness of the closed-loop system against actuator faults and non-linearities from the every beginning. Finally, simulation results for a model of B747-100/200 aircraft confirm the effectiveness of the proposed control method.</P>
Ying Hao,Robin K. Chou,Keng-Yu Ho,Pei-Shih Weng 한국증권학회 2016 Asia-Pacific Journal of Financial Studies Vol.45 No.4
Using a large data set with detailed classifications of different trader types, this study sheds further light on the trading activity of various trader types on the Taiwan futures exchange (TAIFEX). Compared with domestic traders on the TAIFEX, we find that foreign institutional traders act as contrarians. In addition, when the market becomes illiquid, foreign institutional traders are net buyers and individual traders are net sellers. The result implies that both foreign institutional traders and individual traders may contribute to the recovery of liquidity dry-ups together. Among all traders, only the order imbalance of foreign institutional investors presents return predictability when the market is illiquid, which suggests they have an information advantage in such a market.
Ying-Hao Liu,Qian Gong,Yi-Kai Wang,Wei-Bing Shuang 대한배뇨장애요실금학회 2023 International Neurourology Journal Vol.27 No.2
Purpose: The main treatment options of neurogenic bladder remains catheterization and long-term oral medications. Metabolic interventions have shown good therapeutic results in many diseases. To date, no studies have characterized the metabolites of the detrusor muscle during neurogenic bladder. Using metabolomics, new muscle metabolomic signatures were identified to reveal the temporal metabolic profile of muscle during disease progression. Methods: We used 42 Sprague-Dawley rats (200±20 g, males) for T10 segmental spinal cord injury modeling and collected detrusor tissue and performed nontargeted metabolomics after sham surgery, 30-minute, 6-hour, 12-hour, 24-hour, 5-day, and 2-week postmodelling, to identify the dysregulated metabolic pathways and key metabolites. Results: By comparing mzCloud, mzVault, MassList, we identified a total of 1,271 metabolites and enriched a total of 12 metabolism-related pathways with significant differences (P<0.05) based on Kyoto Encyclopedia of Genes and Genomes analysis. Metabolites in several differential metabolic pathways such as ascorbate and aldarate metabolism, Steroid hormone biosynthesis, and carbon metabolism are altered in a regular manner before and after ridge shock. Conclusions: Our study is the first time-based metabolomic study of rat forced urinary muscle after traumatic spinal cord injury, and we identified multiple differential metabolic pathways during injury that may improve long-term management strategies for neurogenic bladder and reduce costs in long-term treatment.